2026 NPPES data Legal Medicine NPI 1043276272 M.D.
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MARIA DIAZ-STANCHI, M.D.

Legal Medicine in WILMINGTON, Delaware. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
5K
Medicare Part D claims · 332 beneficiaries · Legal Medicine avg: 3K
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: MARIA DIAZ-STANCHI, M.D. is a Legal Medicine ([object Object]) practicing in WILMINGTON, Delaware with a Medicare Part D prescribing footprint of 5K claims across 332 beneficiaries — 11% brand-name prescribing .

What stands out: MARIA DIAZ-STANCHI, M.D. filed 4,652 Medicare Part D claims in 2023 across WILMINGTON, Delaware. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

MARIA DIAZ-STANCHI, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 04/25/2006

NPI 1043276272

Primary specialty

Legal Medicine

Niche

1,067 US NPIs in this specialty

Medicare Part D claims

4,652 65% vs specialty avg

2023 prescription claims

Specialty avg: 2,821

Specialty distribution in Delaware

How Legal Medicine compares to other specialties among Delaware providers

Delaware providers

Legal Medicine share within Delaware

1. Legal Medicine42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Legal Medicine share within Delaware

Specialty board-certification context

Estimated specialty board-certified rate — Legal Medicine (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Legal Medicine ABMS/AOA estimate

Est. board-certified rate (Legal Medicine) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Legal Medicine) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

MARIA DIAZ-STANCHI, M.D. is a Legal Medicine provider practicing in WILMINGTON, Delaware, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1043276272. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

MARIA DIAZ-STANCHI, M.D. appears in the CMS NPPES registry as a Legal Medicine provider holding M.D. credentials at 2700 SILVERSIDE RD, WILMINGTON, DE, 19810, with a listed phone of (302) 478-0400. NPI 1043276272 was issued on 04/25/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DIAZ-STANCHI most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 4,652 prescription claims written by this provider, covering 332 Medicare beneficiaries and totaling roughly $446K in drug spend, split 11% brand-name and 89% generic by claim count, with an opioid prescribing rate of 3.1%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Legal Medicine is a narrow specialty nationwide, with 1,067 enrolled providers across 51 states and an average of 2,821 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

2700 SILVERSIDE RD
WILMINGTON, DE 19810

Provider Details

NPI 1043276272
Specialty Legal Medicine
Credentials M.D.
Gender Female
NPI Issued 04/25/2006

Hospital and facility affiliations

Facilities where MARIA DIAZ-STANCHI, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

WILMINGTON MEDICAL ASSOCIATES, P.A.
WILMINGTON, DE

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Brand vs generic prescribing mix · Typical

MARIA DIAZ-STANCHI, M.D. — brand share 11.0%
Specialty average (est.)

11% brand-name claims vs 89% generic, on 4,652 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

4,652
Total Claims
$446K
Total Drug Cost
332
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
11,585
Total Day Supply
340,321
Brand vs Generic
11% brand / 89% generic
Brand Drug Cost
$345K
Generic Drug Cost
$98K
Opioid Claims
143 (3.1% rate)
Antibiotic Claims
88

Patient Demographics

Average Patient Age
75.3 years
Avg HCC Risk Score
0.94
Gender Split
80% female / 20% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Atorvastatin Calcium
364
Levothyroxine Sodium
277
Rosuvastatin Calcium
215
Amlodipine Besylate
187
Valsartan
157
Losartan Potassium
143
Metoprolol Succinate
141
Omeprazole
131
Sertraline Hcl
109
Hydrochlorothiazide
108

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Legal Medicine Overview

How MARIA DIAZ-STANCHI, M.D. fits within the Legal Medicine landscape nationally.

1,067
Legal Medicine Providers in US
51
States with Legal Medicine
2,821
Avg Claims per Provider

MARIA DIAZ-STANCHI, M.D.'s 4,652 claims are above the specialty average of 2,821.

Nearby Legal Medicine Providers in Delaware

Other clinicians with the same primary specialty enrolled in Delaware, drawn from the same CMS NPPES roster as DIAZ-STANCHI.

Compare Legal Medicine nationally: see state-by-state distribution →

Frequently Asked Questions

What is MARIA DIAZ-STANCHI, M.D.'s specialty?
MARIA DIAZ-STANCHI, M.D. specializes in Legal Medicine and practices in WILMINGTON, Delaware. Credentials: M.D..
How much does MARIA DIAZ-STANCHI, M.D. prescribe under Medicare Part D?
In 2023, MARIA DIAZ-STANCHI, M.D. wrote 4,652 Medicare Part D claims totaling $446K in drug costs for 332 beneficiaries.
Where is MARIA DIAZ-STANCHI, M.D. located?
MARIA DIAZ-STANCHI, M.D. is located at 2700 SILVERSIDE RD, WILMINGTON, DE, 19810. Phone: (302) 478-0400.
What is MARIA DIAZ-STANCHI, M.D.'s NPI number?
MARIA DIAZ-STANCHI, M.D.'s National Provider Identifier (NPI) is 1043276272, issued on 04/25/2006.
Does MARIA DIAZ-STANCHI, M.D. prescribe more brand-name or generic drugs?
MARIA DIAZ-STANCHI, M.D.'s prescribing is 11% brand-name and 89% generic drugs by claim count, with $345K in brand drug costs.
Does MARIA DIAZ-STANCHI, M.D. prescribe opioids?
Yes, MARIA DIAZ-STANCHI, M.D. had 143 opioid claims in 2023 with an opioid prescribing rate of 3.1%.
How many Legal Medicine providers are there in the US?
There are 1,067 Legal Medicine providers across 51 states in the US. The average Legal Medicine provider writes 2,821 Medicare Part D claims per year.
What drugs does MARIA DIAZ-STANCHI, M.D. prescribe most often?
Based on 2023 Medicare Part D data, MARIA DIAZ-STANCHI, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Rosuvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARIA DIAZ-STANCHI, M.D. accept Medicare?
MARIA DIAZ-STANCHI, M.D. appears in CMS Medicare data with 4,652 Part D claims and 332 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARIA DIAZ-STANCHI, M.D.'s credentials?
MARIA DIAZ-STANCHI, M.D.'s NPI is 1043276272 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology